/**
 * Copyright (c) 2013-2022 Nikita Koksharov
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.redisson.api;

import java.util.concurrent.TimeUnit;


public interface RSemaphoreAsync extends RExpirableAsync {


    RFuture<Boolean> tryAcquireAsync();
    
    RFuture<Boolean> tryAcquireAsync(int permits);

    RFuture<Void> acquireAsync();

    RFuture<Void> acquireAsync(int permits);


    RFuture<Void> releaseAsync();

    RFuture<Void> releaseAsync(int permits);


    RFuture<Boolean> trySetPermitsAsync(int permits);

    RFuture<Boolean> tryAcquireAsync(long waitTime, TimeUnit unit);

    RFuture<Boolean> tryAcquireAsync(int permits, long waitTime, TimeUnit unit);


    RFuture<Void> addPermitsAsync(int permits);

    RFuture<Integer> availablePermitsAsync();

    RFuture<Integer> drainPermitsAsync();

}
